Demountable sectional partition



April 27, 1965 E. c. LISKEY, JR 3,180,459

DEMOUNTABLE SECTIONAL PARTITION Filed June 12, 1962 3 Sheets-Sheet 1FIG. I

INVENTOR. ERNEST C. USKEY, JR

April 27, 1965 E. C. LISKEY, JR'

DEMOUNTABLE SECTIONAL PARTITION s Sheets-Sheet 2 P Fl.

A 29 1/25 l u 50 a L "A L s E g i :1 1 l H! E i!" 29 u I i 29 A 0} b 5+L gl l l b H 5 bl b F|G.6 f I i I I I 59 i 5 y raj: i2? 7' 5i" 1 l b r25 v 40 v INVENTOR.

ERNEST C. LISKEY, JR.

A TTORNE Y April 27, 1955 E. c. LISKEY, JR 3,180,459

DEMOUNTABLE SECTIONAL PARTITION Filed June 12, 1962 3 Sheets-Sheet 3INVENTOR. ERNEST c. LlSKEY, JR.

' ATTORNEY United States Patent a it 3,180,459 DEMOUNTABLE SECTIONALPARTITION Ernest C, Lislrey, .In, Severna Park, Md assignor to LiskeyAluminum, Inc., Glen Burnie, Md., a corporation of Maryland Filed June12, 1962, Ser. No. 201,954 Claims. (Cl. 189-34) The present inventionrelates to an improved partition construction, for dividing a floor areainto separate rooms and/or separate cubical spaces or the like, whichconstruction is characterized by its simplicity and the ease with whichit permits the partition to be erected, dismantled and/ or modified atany desired portion thereof.

Hitherto, various similar partition constructions have been proposed,but these, for the most part, have been of the progressive type whereeach panel is interlocked with the adjacent panel or to a supportingpost or column in a manner which does not permit removal or replacementof the individual panels independently of another without disassemblingthe whole or a substantial portion of the partition.

The main object of this invention is the provision of an improvedrelatively inexpensive partition of simplified, yet sturdy,construction, comprising an assembly of preformed interfitted units,including alternate supporting posts and panels releasibly interlocked,which permits any tier of panels to be removed or replaced, or thepartition arrangement to be modified, without dismantling or reiovingany adjacent tier of panels; and, which, further, permits the partitionassembly to be erected on the site, where it is to be used, or to bemodified by maintenance personnel instead of skilled carpenters ormetal-workers.

A particular object of the invention is the provision of a partitionhaving the features just defined, that may be of different typesi.e.including railhigh, bank-high, cornice-high or floor-to-ceiling-highbythe use of basic structural aluminum extruded components, solid and/orglazed panels, or a combination of both, and various fasteners, thesevarious items being converted to form the various types of sturdypartition assemblies.

Another object of the invention is the provision of an improved latchmeans carried mounted in the side channels of each partition panel-frameand normally biased outwardly therefrom to project into and engage inspaced openings on the opposing faces of adjacent supporting posts tofirmly hold its panel in place, ensuring a tight joint between theadjacent posts and the panel and, at the same time, providing theoptimum of vertical support for the panel. The latch means is ,sodesigned that removal of the panel is achieved by raising it slightlyand withdrawing it laterally from between the adjacent components of thepartition system; and the panel may be replaced by a reverse order ofmovements.

Various other objects, advantages and meritorious features of thisinvention will become apparent from the fol lowing description.

The invention resides in the sundry details of construction and thenovel arrangement or organization more fully described herein as thisspecification proceeds and by which these objects and advantages areattained.

In the accompanying drawings, which illustrate the invention in itsseveral embodiments as now devised:

FIGURE 1 is a front elevation of a six-panel cornicehigh partitionconstructed in accordance with the present invention, the four panels tothe right being closed to the ceiling by filler-panels and being closedat the base of the partition, while the two panels at the left of thepartition are only cornice-high and open at the base of the partition;

FIGURE 2 is a front elevation of another type of partition constructionwith the components of and in accordance with the present invention andis composed of IiglhhAS Patented Apr. 27, F355 (from left to right) arail-high section, a low bank-high section and a taller bank-highsection, all being open at their bases;

FIGURE 3 is a fragmentary perspective view of the taller bank-highpartition constructed in accordance with the present invention;

FIGURE 4 is an enlarged transverse sectional view through the partitionof this invention taken substantially on line 4-4 of either FIGURES 1, 2or 3 and illustrates certain details of the construction of a partitionpanel, of its supporting posts and of the latch means removably bindingand supporting the panels to said posts;

FIGURES 5 and 6 are sectional views taken substantially on line 55 andline 6--6, respectively, of FIGURE 4 to illustrate the detail ofconstruction and the manner of mounting the latch means in the panelframe, as well as the manner the latch means cooperates with thesupporting posts;

FIGURE 7 is a fragmentary elevation of a so-called solid core partitionpanel, in which portions have been broken away to illustrate the mannerthe core is framed, the manner the frame members are secured togetherand the position of the latch-means for securing the same to supportingposts;

FIGURES 8 and 9 are sectional views taken substantially on line 88 andline 9-9 of FIGURE 7, respectively, to show in detail the corner clipswhich secure the extruded panel framing members together;

FIGURE 10 is a perspective view of the corner clips for holding framingmembers together.

The several arrangements of partitions, illustrated in FIGURES 1, 2 and3, have been selected to indicate the versatility of the structuralcomponents which constitute the present invention and which comprisesessentially spaced posts 25 supporting panels P releasibly latched, asat L, to and between them. As shown, these panels P may be of variousheights, may be of the opaque-solid type or of the glazed type or acombination of both, may have open bases (as shown in FIGURES 2 and 3)or closed bases or a combination of open and closed bases (as shown inFIGURE 1) may be rail-topped 60 or cornice-topped 61, may havefiller-panels 7%) with glazed or opaque sections extending from thecornice 61 to the ceiling and, further, may be provided with adoor-frame 8G and door 81.

Since an important feature of this invention is the provision of asturdy partition that is relatively inexpensive to manufacture, as wellas to erect, remove or modify by unskilled personnel and requiring few,if any, exposed screws or fasteners for fastening or holding thecomponent parts together, all of said component parts, except the panelcores, doors and their hardware, supporting-post pedestals, coil springsand screws, are provided from appropriate lengths of framing members ofdifferent cross-sectional shapes of extruded aluminum (normally calledshapes in the industry) of proper thickness, so as to be rigid, and ofdimension to interfit one with the other in a telescopic overlappingmanner as will give rigidity to the structure when assembled. Theseextruded members may be satin-anodized or have their outer exposedsurface coated With a suitable pigmented coating and all are designed toaccommodate electrical or telephone wiring within them. Such aconstruction requires few screws that may be readily tapped through thematerial, and those that are required are merely for retaining parts inposition and are usually located at inconspicuous places which will notbe observed.

The posts 25, which are rectangular (preferably square) incross-section, are formed from two lengths of a single extruded L-shapea (see FIGURES l, 2, 3 and 4), the inner side-face of one flange of saidL-shape being formed with a dove-tail groove 26 along its free angularlyprojecting rib 27 having a dove-tail projection 28 extending along theouter face of said rib and complemental with the groove 26. Thus, twolengths of the shape a may be positioned so that their dove-tailprojections 28 will slide longitudinally into the dove-tail grooves 26with. a tight fit to provide each rectangular post 25. This is a veryinexpensive and facile Way of forming the hollow posts 25, which must bepunched on its several faces at intervals of from 12" to 18" apart'toprovide keeper-opening 29 to receive and retain of the panel P.

The lower ends of the posts 25 are preferably supported on pedestals 35,which are suitably adjustable for the purpose of levelling thepartition, due to irregularities in the floor or other supportingsurfaces and, further, to afford a broad foot means for anchoring theposts against lateral movement.

The partition panels, particularly the main panels generally designatedP, carry in each of their side edges the spring-loaded latches L bywhich the panels are releasibly supported and held in firm abuttingconnection with the adjacent posts 25 and are insertable and removablefrom the posts by a simple relative longitudinal sliding movement.

These panels may be of solid opaque material, as panels 38 in FIGURES 1,3 and 4, or of a combination of solid opaque and translucent material,as panels 39 in FIG- URES 2 and 3, or entirely of translucent material,but, in any case, the panel-material is rimmed by a rectangular frame 4%which releasably supports the panel-material and which detachablyconnects the panel-material to posts 25. The solid panelling materialmay be constructed of sheet material about 1% inches thick, and consistsof wood veneer or standard wood-fiber hardboard bonded.

to each side face of a sound insulating core. The face of the hardboardmay also be finished with selected photographic wood-grain finishes orwith alkyd enamel or lacquer or other suitable coatings. The panellingmaterial may also be of glass, fiberglass or other polyesters which maybe either transparent or translucent.

The panel-frames 40 for each panel P, having a single panel section(either solid or glazed), comprises two lengths of a channel or U-shapemetallic extrusion b, one

length ofan H-shape metallic extrusion c of about the same width as theframe-member b and one length of a wider H-shape metallic extrusion d,the frame members or extrusions b, c and 41 being ofa length as willform a rectangular frame, when assembled as shown in FIGURES 1, 2, 3, 4and 7. Should the panel comprise both a solid section and a glazedsection (as shown in portions of FIGURES 1, 2 and 3), then thepanel-frame 40 will require another length of the H-shape extrusion d,as shown in FIGURE 12, in addition to those just mentioned.

The U-shape extrusion b is formed with a rib [2 pro jecting laterallyinwardly from an immediate portion of each of its legs for a distanceand in substantially the same plane as to be spaced from each other andfrom the bottom or close-side of the U-shape channel-like member Theribs b provide abutment surfaces against which corner clips 41 react.The wide 'HSl1ape extrusion d is similarly provided with ribs d on bothsides of medial connecting webw and the narrower H-shape member c isformed with similarly spaced and inwardly extending ribs along one paironly of correspondingly spaced edges, as shown in FIGURES 4 and 7.

the latch-means is inserted for a measured distance into each end of twolengths of frame-members b with said leg lying Within the passagebetween the'ribs'b' and the bottom of the channel-shaped frame-membersb, and fastened in posi tion by screws 42. One or more screws 42 arethreaded through the legs of the clip 41 to bear against the bottom ofthe channel or web w ofsaid frame-members b, c and d and, thus, bind thelegs of the clips 41 against the adjacent rib b, c or d, The openchannel side of these two frame-members b are then fitted to each sideedge, respectively, of the panel-material until the latter abuts theribs b, while the other leg of the-clip 41 projects into a passagebetween ribs 0' and d and the webs w of the bottom and top frame members0 and d. When the four frame-members are firmly in. position with alljoints square and in contact, the screws 42 on the leg of the clipextending inthe frame-members c and d are tightened to bind the clipsthereto and form a firm panel.

The right-angular corner clips 41 are stamped from an extruded L-shapedbar of aluminum, each leg being formed with a pair of spaced reinforcingribs 45. The width of each clip 41 is at least greater than the-distancebetween the abutment rib b, c and d for the purpose above indicated. Instamping out the clips 41, their sideedges are notched or reduced for adistance on both sides of the angle, as at 46, to permit this portion ofthe clip to extend through the spaces between the spaced abutment ribsb, c and d and, thus, allow the position of the clips to be adjusted asmay be required with rereinforcing ribs 45 to receive the self-tappingscrews 42.

spect to the frame-members b, c, and a'; and, at the same time, openings47 are provided in the areas between the It will be noted, particularlyfrom FIGURES 4, 6 and I 7, that the flat bottom wall of thechannel-shaped side frame-members b are outmost at the side edgesof thepanels P, so as to present a fiat smooth extended bearing surfaceagainst the similar flat surface of'the adjacent panel-supporting posts25 to provide a firm connection with the posts when the latches L areengaged therewith.

The'latches 'L are positioned in and along the side frame members 17 ofthe panels P about 12 to 20 inches apart and are of a very simple andimproved construction which maybe adjusted as required and permits thepanels to be In framing solid panel-material 38, as particularly shownin FIGURES 7 to 10, the open channel side of a length framemember c andd are applied to the bottom and top edges, respectively, of. thepanel-rnaterial to fittedly embrace said material which extends for acon- 7 52a and extending parallel with the latter and offset up- 7firmly connected to the supporting posts 25 and discon nectedtherefromby a movement longitudinal of the posts and while in contact with theposts. Hence, a panel can be inserted intosupported latched position andremoved from that positionwithout moving or disturbing the two adjacentposts which support a panel.

Each latch L comprises a detent 50, which, in elevation, is a severedsection of an extruded aluminum bar having the cross-sectional shape orconfiguration shown in FIG- URE 6. When so severed, the detent 5i)comprises a rectangular body of less thickness than width. The frontface of this detent body 50 is;rabbetted across two oppo: site marginaledge portions to form upper and lower stopflanges 51 and 52,respectively, projecting beyond adjacent shoulders 51a and 52a extendingat right angles to said flanges and of a thickness or heightcorresponding to the thickness of the edge of the opening 53 in theframemember b. i g

The'area of the outerfront surface of the detent 5i),

between't-he shoulders 51a and 52b and projecting'beyond the plane ofthese shoulders, is canted or beveled upwardly to the upper'shoulder51a,-thus giving a nose-like profile to the detent 5h as canbe clearlyseen in FIGURE 6. The underside of this nose-like projection is formedwith an inverted groove 54 between its tip and the shoulder wardly fromit. As seeninFIGURE 6, the width of the bottom of the groove 54corresponds to the thickness of the edge of the keeper-openings 29 inthe post 25, which co-actwiththe detent 50, and" the anterior wall ofthe groove 54. converges tothe bottom wall of said groove while itsposterior wall is at right angles to the shoulder 52a to lie flush withthe outer surface of the side framemember b, when in its normallyprojected position.

Also, as can be clearly seen from FIGURES 4, 5 and 6, each detent 50 ismounted in an opening 53 in the closed or bottom wall of thechannel-shaped panel-frame member b. The area of the nose-like portionof the detent between the shoulders 51a and 520, which extends into andthrough the opening 53, is dimensioned to substantially fill saidopening 53 with just enough clearance to allow the detent to fulcrum atits upper end and with the stop-flanges 51 and 52 engageable with themarginal edge portions of the opening 53 to limit the outward movementof the detent through said opening. It is preferred that the openings 53and the detents 50 be as wide as possible to provide large bearingsurfaces at 4-1:: and 29a to afford stability against flexibility of theinterconnection between the panels P and the posts 25.

The detent 50 is yieldably held in position by a helical compressionspring 55 interposed between the detent and retainer plate 56 positionedin back of the detent and spanning the abutment rib b of the panelside-frame member b. The intermediate portion of the plate 56 is olfsetoutwardly and projects between the abutment ribs b to provide a seat564: for one end of said spring opposite the groove seat Stia in thedetent 50 and between which the spring 55 reacts. The retainer plate 56has a finger 57 extending from an edge of its offset portion andprojecting loosely into a narrow slot 58, extending across the upper endof the back face of the detent 50 to positively retain it in operativeposition when fulcruming. The retainer plate 56 is held firmly inposition by screws 59 which are threaded in the plate 56 and bearing onthe frame member b to move the ends of the plate 56 in bindingengagement with the abutment ribs b.

In order to firmly set a panel P in place between two properlypositioned supporting posts 25, it is only necessary that the panel beinserted between the posts with their detents 50 depressed against thebias of their springs 55 to lie entirely within the opening 53 in thepanel side-frame member b and positioning the panel so that the detentswill be an inch or so above the keeper-openings 29 of the posts whichthe respective detents 50 are to engage. Hence, the detents will remaindepressed within their openings 53 by engaging against the side surfacesof the posts; and, then, by sliding the panel downwardly andlongitudinal of the posts-after having aligned the panel with thepoststhe detents will be brought opposite the keeper-openings 29 in theposts and will then be projected into the said keeper-openings by thespring 55 with the shoulders 51a and 52a lying in alignment with theedges of the openings 53; and, as the panel moves further downwardly,the edge 29a of the keeper-openings 29 will enter the slot 54 and becomeseated at the bottom of the slot 54, thus firmly and securely supportingand fastening the panels in position.

Should it become desirable to disconnect or remove a panel fromposition, it is only necessary to exert an upward force on the panels,which will cause them to slide upwardly and move the groove 54 of thedetent out of engagement with the keeper-edge 29a; and further upwardmovement will cause the edge 2% of the keeper-openings 29 to engage andride upon the beveled or canted surface of the detent 50 depressing thedetent into its retaineropening 53 and fully within the confines of thepanel; whereupon, the panel can be moved from between the posts and maybe reinserted in the reverse manner.

Rail-high and bank-high partitions, as shown in FIG- URE 2, are usuallyfinished or topped by an extruded shape forming a relatively thincap-rail 60, which is fitted over the top frame-member d of the panels Plike a frictional flanged-lid. The cap-rail oil is preferably of alength to extend over and cover the upper edges of all panels P andposts 25 on the same level.

Cornice-high partitions, shown on the left side of FIG- URE l and inFIGURE 3, are capped by a cornice 61 6 of larger and bolder proportionsthan the cap-rail 60 and this is a length of extruded aluminum, forminga deep rigid channel in cross-section and thicker than the panels P andthe posts 25, to fit over and protrude laterally for a considerabledistance beyond them. The outer face of the bottom wall of the channelhas a pair of spaced and depending flanges extending lengthwise thereofto embrace and telescope over and against the outer side Walls of thetop frame-member d of the panel framing 40 and of the posts 25 with africtional binding fit, thus producing an intermediate offset-moldingeffect between the panel frame 40 and the outer face of the cornice 61.

To convert a cornice-higl1 partition into a ceiling-high partition,filler or transom panels (FIG. 1) are inserted between the cap-rail 60or the cornice member 61 and ceiling-seal strip 66, which is securedagainst the ceiling, and between the stiles 68, which in effect formvertical extensions of each post 25.

From the above description of the several forms of partitioning that canbe effected in accordance with applicants present invention, it will benotml that the panels can be readily assembled in position between saidposts and any of said panels can be removed readily and individuallyfrom assembled position without disturbing the remainder of thepartition construction and that the paneling material is alwaysprotected by the metal frame which carries the weight of the panels allof which may be assembled very quickly with the assistance of unskilledhelp to form a rigid, sturdy partition structure.

Having thus described the invention, in the manner in which the same isto be performed, it is understood that the invention is not limited tothe exact construction herein defined and illustrated, but may bemodified and/ or varied within. the scope of the appended claims.

That which is claimed, as new and to be secured by Letters Patent, is:

1. A demountable partition structure comprising alternating partitionpanels and supporting posts detachably connected thereto, the adjacentposts and panels having substantially flat side surfaces ofpredetermined width in abutting face-to-face engagement; latch means atspaced intervals along said opposing surfaces, each of said latch meanincluding a detent movably mounted in and normally biased to project fora limited distance through a retaining opening in one of said opposingsurfaces and being depressible into said retaining opening to permitsaid opposing surfaces to be brought into engagement; a keeper-openingin the other of said surfaces receiving said detent therein, said detenthaving a latching part fitting over an edge of the keeper-opening andsupporting and firmly holding the panels to the posts and having acamming surface to engage an opposite edge of the keeper-opening anddepress the detent within its retaining opening, upon the reverserelative movement of said posts and panels, for disconnecting the panelsfrom it supporting post or posts.

2. A demount-able partition structure comprising a plurality of spacedsupporting posts, panels disposed between the posts, the adjacent postsand panels having substantially flat side-by-side abutting surfaces ofpredetermined width to provide substantial bearing area; a plurality oflatch means disposed at spaced intervals along said opposing surfacesreleasibly connecting said posts and panels together, each of said latchmeans including a yieldably mounted detent within a side edge portion ofits panel and normally projected through an opening in said abuttingsurface thereof, and being depressible wholly within the confines ofsaid panel, means limiting the projection of said detent through saidopening, a keeper-opening in said surface of the post for each detentreceiving said detent therein, said detent being projected in saidkeeper-opening by its bias and having a grooved surface straddling anedge of the keeperopening that supports the panel on the post and bindstheir abutting surfaces together, said grooved surface being broughtinto engagement with the lower edge. of said keeper-opening, when saidsurfaces of the post and panel are movedtrelatively andlongitudinallywith respect to each other, and having a camming surface to engage anopposite edge of the keeper-opening for depressing said detent Withinthe confines of the panel upon a reverse movement of said members,whereby the panel may be disconnected frorn'the posts.

3. A demountable partition structure comprising alternating partitionpanels and polygonal supporting posts, the said panels being disposedbetween said posts and detachably connected thereto, each panelincluding a selected panelling-material and enclosed in a rimming metalframe, the side members of said frame having substantially flat edgesurfaces of substantial width and outwardly spaced from thepanelling-material and engaging face-to-face with a face of said posts,said fiat edge surfaces having openings therein at spaced intervalsalong I eir lengths; a rigid detent member disposed in each of thespaces between said rimming frame and said panelling-material and havingaportion projecting through one of said openings inthe'rimming frame andhaving stop members engaging the edge of the opening to limit theoutward movement of-the detent through said opening; a retainer plateadju-stably mounted in each of said spaces and a compression springseated between the retainer plate and the detent normally urging thedetent through said opening; a keeper-opening in said surface of thepost for each detent receiving said' detent therein, said detents beingprojected into said keeper-openings by their bias, said detents, eachhaving a grooved surf-ace straddling an edge of the keeper-opening thatsupports the panel on the post and binds their abutting surfacestogether, said grooved surface being brought into engagementf with thelower edge of said keeper-opening,

- When said surfaces of the post and panel are moved relatively andlongitudinally with respect to each other,

and having a camming surface to engage an opposite edge of thekeeper-opening for depressing said detent within the confines of thepanel UIPOH a reverse movement of said members, whereby the panel may bedisconnected from the posts. a

4. A partition structure set forth in claim 3, further 8 V characterizedby the retainer plate having afin'ger projecting toward one end of thedetent andloosely engaging in a slot thereinproviding a' fulcrum forthedetent when the same is depressed and holding the detent in positionwith respect to its retaining opening.

5 A demountable partition structure comprising alternating partition,panels and supportingpost detachably connectml togetheneach panelincluding a portion of a panelling-material enclosed in a rimming metalframe, said rimming frame including lengths of rigid channelshaped metalhaving their channeled faces receiving and embracing the edge portions,respectively, of the panelling-material and concealably anddetachablyconnected together, latch means located at spaced intervalsalong the vertical side members of said rimming frame engaging inkeeper-dpenings in said posts holding the panels firm ly to the posts,each latch means including a outwardly spring-pressed detent mounted ina retaining-opening in said side frame'members and rdepressible Withinsaid opening against its bias, and a surface on said detent to engageWith an edge ofsaid keeper-opening, when the panel is moved relative tothe post in one direction, for depressing said detent and releasing saidpanel therefrom.

References Cited by the Examiner UNITED STATES PATENTS 443,322 12/90Kinnear 189-87 559,335 4/96 Kindl 189-41 842,330 1/07 McCormick -80983,673 2 11- 1,565,309 12/25 Daykin et al. 189-36 2,048,153 I 7/36Wollaeger a 189-85 2,057,204 10/36 Peck et al 189-85 2,380,692 7/45Gunnison 50-80 2,714,432 8/55 Blanchard 189-78 3,031,049 4/62 Somville189-78 3,047,112 '7/62 Tvorik et al. 189-87 RICHARD w. COOKE, JR.,Primary Examiner. JACOB L. NACKENOFF, Examiner.

1. A DEMOUNTABLE PARTITION STRUCTURE COMPRISING ALTERNATING PARTITIONPANELS AND SUPPORTING POSTS DETACHABLY CONNETED THERETO, THE ADJACENTPOSTS AND PANELS HAVING SUBSTANTIALLY FLAT SIDE SURFACES OF PREDETEMINEDWIDTH IN ABUTTING FACE-TO-FACE ENGAGEMENT; LATCH MEANS AT SPACEDINTERVALS ALONG SAID OPPOSING SURFACES, EACH OF SAID LATCH MEANSINCLUDING A DETENT MOVABLY MOUNTED IN AND NORMALLY BIASED TO PORJECT FORA LIMITED DISTANCE THROUGH A RETAINING OPENING IN ONE OF SAID OPPOSINGSURFACES AND BEING DEPRESSIBLE INTO SAID RETAINING OPEING TO PERMIT SAIDOPPOSING SURFACES TO BE BROUGHT INTO ENGAGEMENT; A KEEPER-OPENING IN THEOTHER OF SAID SURFACES RECEIVING SAID DETENT THEREIN, SAID DETENT HAVINGA LATCHING PART FITTING OVER AN EDGE OF THE KEEPER-OPENING ANDSUPPORTING AND FIRMLY HOLDING THE PANELS TO THE POSTS AND HAVING ACAMMING SURFACE TO ENGAGE AN OPPOSITE EDGE OF THE KEEPER-OPENING ANDDEPRESS THE DETENT WITHIN ITS RETAINING OPENING, OPEN THE REVERSERELATIVE MOVEMENT OF SAID POSTS AND PANELS, FOR DISCONNECTING THE PANELSFROM ITS SUPPORTING POST OR POSTS.